18,231 in words
18,231
eighteen thousand two hundred thirty-one
18,231 is written eighteen thousand two hundred thirty-one.
Ways to write it
- As an ordinal
- eighteen thousand two hundred thirty-first
- Expanded form
- 10,000 + 8,000 + 200 + 30 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 8 | 8,000 |
| hundreds | 2 | 200 |
| tens | 3 | 30 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 59, 103, 177, 309, 6,077 and 18,231 (8 factors)
- First 10 multiples
- 18,231, 36,462, 54,693, 72,924, 91,155, 109,386, 127,617, 145,848, 164,079, 182,310
- Square
- 18,231 × 18,231 = 332,369,361
- Square root
- ≈ 135.02
- Sum of the digits
- 1 + 8 + 2 + 3 + 1 = 15
- Rounded to the nearest 10
- 18,230
- Rounded to the nearest 100
- 18,200
- Rounded to the nearest 1000
- 18,000
- Number before
- 18,230
- Number after
- 18,232
- In binary
100011100110111
Quick check
What number comes just after 18,231?
Show the answer
18,232
Is 18,231 even or odd?
Show the answer
Odd
What is 18,231 + 10?
Show the answer
18,241
Practice with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 18,231 in words?
18,231 is written "eighteen thousand two hundred thirty-one".
Is 18,231 a prime number?
No. 18,231 is a composite number, because it has more than two factors.
What are the factors of 18,231?
The factors of 18,231 are 1, 3, 59, 103, 177, 309, 6,077 and 18,231.